Home / 13,938.72-19,244.16-9,694.32

Finding the Fourth Proportional to 13,938.72, 19,244.16 and 9,694.32

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Solution

The fourth proportional to 13,938.72, 19,244.16 and 9,694.32 is: 13,384.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.72 : 19,244.16 = 9,694.32 : x
  2. Step 2: Convert to fraction form
    13,938.72/19,244.16 = 9,694.32/x
  3. Step 3: Cross multiply
    13,938.72x = 19,244.16 × 9,694.32
  4. Step 4: Simplify right side
    13,938.72x = 186,559,045.17
  5. Step 5: Solve for x
    x = 186,559,045.17/13,938.72
  6. Step 6: Final answer
    x = 13,384.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.